This Woman's Mile-Long Hair Got a Rainbow Dye Job in Just Four Hours

There’s a saying that goes, “long hair, don’t care.” But, whoa, excuse me, we most definitely do care about this ultra-long rainbow masterpiece that we just peeped on the ‘Gram. Naturally, we needed to know more about this look, created by hairstylist Rebecca Taylor — especially since the caption gave way to the fact that, unlike her first two-day go-round at down-to-there rainbow hair, this look only took a mere four hours to create. Say what?

Trillion Tones, a new hair color line designed by Taylor in partnership with Finnish hair brand Sin Sensitive, claims to be the first-ever hybrid color line that not only works as a permanent color, but also as a demi, semi, or toner. The entire system is comprised of 16 products, including pigment, alkaline, and developer. While pigment is a no-brainer, it’s the alkaline and developer that deserve special attention.

According to the brand's website, alkaline works to help the pigment penetrate deeper into the hair shaft, while simultaneously working as a lightening catalyst when working in combination with the developer. The developer is made of hydrogen peroxide, which causes oxidation and lightens the natural melanin in hair, which helps promote a longer-lasting color. “Trillion Tones is completely game-changing because you don’t have to bleach first to do fashion color, you can now do it in just one step because the product lifts and deposits color simultaneously,” Taylor tells Allure.

Now, back to the beautiful rainbow hair that first caught our eye. “The last time I did hair this long, it needed to be bleached first in order for the color to show up and the whole process took two days,” Taylor says. “Now because of my new hybrid color line, the whole process only took me one stop in four hours.” What’s more, since she didn’t have to bleach that hair, it was in amazing condition post-dye — answering our question about how ultra-long hair health measures up after such an intense coloring sesh.

To get the look, Taylor took note of her inventory — all labeled as A (pigment), B (alkaline), and C (developer) and began thinking of ways she could bring this look to life. The pigment comes in five intense tones, five pastel tones, and white. The alkaline is available in two versions, one for basic coloring and one for more challenging coloring (like this rainbow hue), and the developer comes in 10 vol and 25 vol to provide whatever lightening is necessary based on the starting base color a stylist is working with. With that in mind, Taylor chose her colors, her alkaline, and her developer, then decided on a color melt and got to work.

If you try a color like this for yourself, just remember that, much like rainbow hues achieved with standard dyes, the same care is still absolutely essential in maintaining the look of your new style. “The best way to care for colored hair is to wash hair infrequently,” Taylor says. “Dry shampoo is your best friend. But when you must wash, use a sulfate-free shampoo and conditioner system rinsed in cold water. Turn the blow dryer and hot tools down and try to air-dry your hair when possible.”